620
FZUS54 KHGX 231143
CWFHGX
COASTAL WATERS FORECAST FOR TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
643 AM CDT SUN AUG 23 2026
UPPER TEXAS COASTAL WATERS FROM HIGH ISLAND TO THE MATAGORDA SHIP
CHANNEL OUT 60 NAUTICAL MILES INCLUDING GALVESTON AND MATAGORDA
BAYS.
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST
1/3 OF THE WAVES...ALONG WITH THE OCCASIONAL HEIGHT OF THE
AVERAGE HIGHEST 10 PERCENT OF THE WAVES.
GMZ300-240015-
643 AM CDT SUN AUG 23 2026
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM
INCLUDING GALVESTON AND MATAGORDA BAYS.
SOUTHWEST TO WEST WINDS LATE AT NIGHT AND IN THE MORNINGS WILL
BECOME SOUTH 10 TO 15 KNOTS DURING THE DAY AS THE SEABREEZE KICKS
IN. SEAS WILL BE 1 TO 3 FEET.
GMZ335-240015-
GALVESTON BAY-
643 AM CDT SUN AUG 23 2026
TODAY
WEST WINDS 5 TO 10 KNOTS, BECOMING SOUTH THIS AFTERNOON.
BAY WATERS SMOOTH.
TONIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
MONDAY
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
MONDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
TUESDAY
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING SOUTH
10 TO 15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
THURSDAY
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
THURSDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
GMZ330-240015-
MATAGORDA BAY-
643 AM CDT SUN AUG 23 2026
TODAY
SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING SOUTH THIS
AFTERNOON. BAY WATERS SMOOTH.
TONIGHT
SOUTH WINDS AROUND 10 KNOTS. BAY WATERS SMOOTH TO
SLIGHTLY CHOPPY.
MONDAY
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
MONDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
TUESDAY
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING SOUTH
10 TO 15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
THURSDAY
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
GMZ350-355-240015-
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT
20 NM-COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-
643 AM CDT SUN AUG 23 2026
TODAY
SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING SOUTH LATE. SEAS
AROUND 2 FEET THIS MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL:
SOUTH 2 FEET AT 4 SECONDS, BECOMING SOUTH 1 FOOT AT 5 SECONDS.
TONIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 3 SECONDS.
MONDAY
SOUTHWEST WINDS 10 TO 15 KNOTS, BECOMING SOUTH AROUND
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET IN THE MORNING,
THEN 1 FOOT OR LESS. WAVE DETAIL: SOUTHWEST 2 FEET AT 4 SECONDS,
BECOMING SOUTHWEST 1 FOOT AT 4 SECONDS.
MONDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 4 SECONDS.
TUESDAY
SOUTHWEST WINDS 10 TO 15 KNOTS, BECOMING SOUTH AROUND
10 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET. WAVE DETAIL: SOUTH
2 FEET AT 4 SECONDS.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 4 SECONDS.
WEDNESDAY
SOUTHWEST WINDS 10 TO 15 KNOTS, BECOMING SOUTH
AROUND 10 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
THURSDAY
SOUTHWEST WINDS 10 TO 15 KNOTS, DIMINISHING TO AROUND
10 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
GMZ370-375-240015-
WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX FROM 20 TO
60 NM-WATERS FROM HIGH ISLAND TO FREEPORT TX FROM 20 TO 60 NM-
643 AM CDT SUN AUG 23 2026
TODAY
SOUTHWEST WINDS 5 TO 10 KNOTS, DIMINISHING TO AROUND
5 KNOTS LATE. SEAS AROUND 2 FEET THIS MORNING, THEN 1 FOOT OR
LESS. WAVE DETAIL: SOUTH 1 FOOT AT 5 SECONDS.
TONIGHT
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS, THEN
AROUND 2 FEET AFTER MIDNIGHT. WAVE DETAIL: SOUTH 1 FOOT AT
4 SECONDS, BECOMING SOUTHWEST 1 FOOT AT 4 SECONDS.
MONDAY
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHWEST 1 FOOT AT 3 SECONDS.
MONDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 3 SECONDS.
TUESDAY
SOUTHWEST WINDS 10 TO 15 KNOTS, BECOMING SOUTH AROUND
5 KNOTS IN THE AFTERNOON. SEAS AROUND 2 FEET. WAVE DETAIL: SOUTH
2 FEET AT 4 SECONDS.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 4 SECONDS.
WEDNESDAY
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
THURSDAY
SOUTHWEST WINDS 10 TO 15 KNOTS, DIMINISHING TO AROUND
10 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
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